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Income Taxes (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
May 27, 2012
May 29, 2011
Prepaid state income taxes $ 12.2 $ 5.2
Gross unrecognized tax benefits 15.7 21.9
Unrecognized tax benefits, accrued interest 1.7  
Tax position, change is reasonably possible in the next twelve month 1.0  
Federal
   
Prepaid state income taxes 4.1  
State
   
Prepaid state income taxes $ 8.1